What’s Vulnerable › Vulnerabilities

CVE-2026-64484: ALSA: es1938: check snd_ctl_new1() return value

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-25 · updated 2026-08-17

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: es1938: check snd_ctl_new1() return value snd_ctl_new1() can return NULL when memory allocation fails. snd_es1938_mixer() does not check the return value before dereferencing the pointer, which can lead to a NULL pointer dereference. Add a NULL check after snd_ctl_new1() and return -ENOMEM if it fails.

Affected products

• Linux kernel: 2.6.12 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1949163dee39e0e4a1468f37dd7302962f6af45a
• https://git.kernel.org/stable/c/1edd1f02dddd20aeb6066ded41017615766ea42f
• https://git.kernel.org/stable/c/41759affbcfe3d51a32900da9547a1ffd744a85f
• https://git.kernel.org/stable/c/6c4efebaf73e217efbd08cdbda805758a7db3680
• https://git.kernel.org/stable/c/7531a37720c2545a480fd0fa464978569bf9d6a2
• https://git.kernel.org/stable/c/96cad5bd7d0a176db3fdc06717a41271247336bd
• https://git.kernel.org/stable/c/9e53e99b6fa3cd82992d963cbff58dbbd1df8651
• https://git.kernel.org/stable/c/af01c48e17a66fa038af210a5c49d6cdefd210bd

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